Title (en)

MAGNETIC RECORDING AND REPRODUCING APPARATUS

Publication

EP 0110680 B1 19890906 (EN)

Application

EP 83307180 A 19831124

Priority

• JP 20669482 A 19821124
• JP 20669582 A 19821124

Abstract (en)

[origin: US4605974A] A magnetic recording/reproducing apparatus has a rotor drum with a group of rotary magnetic heads mounted thereon, a reproducing amplifier, a recording/reproducing mode switching circuit, a head selection circuit, a control circuit and a DC voltage source. The control signal circuit and the DC voltage source receive a control signal transmitted from a stator drum through a rotary transformer and produce signals for controlling the mode switching circuit and the head selecting circuit and a DC voltage for energizing all the circuits on the rotor drum, respectively.

IPC 1-7

G11B 5/008; G11B 5/02; G11B 5/127; G11B 5/133; G11B 5/52

IPC 8 full level

G11B 15/14 (2006.01)

CPC (source: EP US)

G11B 15/14 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0110680 A2 19840613; EP 0110680 A3 19851218; EP 0110680 B1 19890906; DE 3380537 D1 19891012; US 4605974 A 19860812

DOCDB simple family (application)

EP 83307180 A 19831124; DE 3380537 T 19831124; US 55500283 A 19831121